package shiyan1;

/**
 * Created by zhangyunqi on 2017/6/8.
 */
import java.io.*;
import java.math.*;
import java.security.*;
import java.security.spec.*;
import javax.crypto.*;
import javax.crypto.spec.*;
import javax.crypto.interfaces.*;

    public class Key2{
        public static void main(String args[ ]) throws Exception{
            // 读取对方的DH公钥
            FileInputStream f1=new FileInputStream(args[0]);
            ObjectInputStream b1=new ObjectInputStream(f1);
            PublicKey  pbk=(PublicKey)b1.readObject( );
//读取自己的DH私钥
            FileInputStream f2=new FileInputStream(args[1]);
            ObjectInputStream b2=new ObjectInputStream(f2);
            PrivateKey  prk=(PrivateKey)b2.readObject( );
            // 执行密钥协定
            KeyAgreement ka=KeyAgreement.getInstance("DH");
            ka.init(prk);
            ka.doPhase(pbk,true);
            //生成共享信息
            byte[ ] sb=ka.generateSecret();
            for(int i=0;i<sb.length;i++){
                System.out.print(sb[i]+",");
            }
            SecretKeySpec k=new  SecretKeySpec(sb,"DESede");
        }

    }
